Scientific Methods Answers

Which is one way that scientists communicate the results of an experiment?

Which best describes the act of using senses or tools to gather information?

Read the lab procedure for a controlled experiment that looks at the effect of heat on the circumference of bicycle tires.Step 1: Pump up six identical bike tires to the recommended air pressure.Step 2: Place three tires under heat lamps, and keep the other three tires at room temperature.Step 3: After four hours, measure the circumference of each tire. Step 4: Record your results in the table.Step 5: (?)Which step should be next in this procedure?

What must be part of a quantitative observation?

A group of scientists have obtained some experimental results. How would the group best find out whether their study is worth more time and resources?

During a conference presentation, a scientist described the materials that she used and how she performed her experiments. Which best explains why a scientist would share these details in a conference?

A scientist would most likely need to update her model when it

An experiment was conducted to see which metal pot would be better for cooking food quickly. The table below shows how quickly small pieces of wax melted during the experiment. Type of metalTime for the wax to melt (seconds)Aluminum27Bronze45Copper15Steel80The following statement was made after the data were examined: “Copper pots are the best pots for cooking food quickly.” Which term best describes this statement?

An investigation involves determining which metal is better for making pots that will cook food faster. Which is the best hypothesis to use for this investigation?

Which best describes the purpose of a control sample?